https://orcid.org/0000-0001-5940-6345
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Abstract
Fasciolosis is a worldwide distribution zoonosis that causes great damage in ruminant breeding and has the aquatic mollusc Pseudosuccinea columella as an intermediate host. Synthetic molluscicides are the most used for control; however, they are harmful to fauna and flora. Therefore, this study aimed to evaluate the effect of essential oils from Thymus vulgaris, Origanum vulgare, and terpene carvacrol, on adult molluscs and eggs of P. columella. Analysis of EO volatile components was carried out on a gas chromatograph equipment coupled with mass spectrometry selective detector. The studied components were diluted in concentrations of 10, 20, 40, 60, 80 and 100 ppm, and it was observed that O. vulgare at concentrations of 60, 80 and 100 ppm, carvacrol at the concentrations of 80 and 100 ppm, and T. vulgaris at a concentration of 80 ppm led to 100% mortality of molluscs. All concentrations the substances tested showed 100% ovicidal activity.
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Acknowledgements
This work was carried out in partnership with the Animal Pathology Laboratories of the Veterinary Hospital of the Agricultural and Engineering Sciences Center (CCAE) of the Federal University of Espírito Santo (UFES), with the Chemistry Laboratory of the Exact, Natural Sciences and Health (CCENS) from the same institution and support of Natural Products and Organic Synthesis Research Group. We would like to thank Espírito Santo Research and Support Foundation (FAPES: TO099/2019) for the financial. This study was performed with the support of the Coordination for the Improvement of Higher Education Personnel - Brazil (CAPES) - Financing Code 001.
Disclosure statement
No potential conflict of interest was reported by the authors.